Leather compound.



"ERAI TL'LIN W. KEEEIEEB, 0F CAELSTADT, JERSEY.

nnarnna cor ronnn.

s70 Drawing.

Specification of Letters Patent.

Application filed July 3.1;, 1912,

Patented June as, rare,

Serial No. 732,549.

To. all whom 2'15 may concern Be it lmown that l, FRAN IN -W. linemen, a citizen of the United States, residing at Carlstadhin the county of Bergen and State'of New Jersey, have invented a new and useful Leather Compound, of which the following is a specification.

lhis invention relates to a leather. and rubber substitute and the method of making the same, the substitute being particularly intended for use in manufacturing horse pads, although it can be used for many other purposes with equally good results.

Prior to my present invention, so far as 1 am aware, the art possessed no horse pad material which Was entirely satisfactory.

Leather was the neareste preach to an ideal horse pad material. ts advantages, however, were tempered with disadvantages,

While it was advantageous because it was tough and strong and did not heat up the horses hoof, it Was disadvantageous in that it would soften and swell when Wet and shrink and harden subsequently when dried; and, moreover, it required to be sewed or cemented or otherwise secured in some expensive and unreliable manner to the soft rubber heel or call: of the horse pad.

Rubber, or rubber compositions,-or layers of rubber and canvas, such as have been proposed as material for horse pads, are open to the objection that they beat or draw the horses hoot, and that they also lack strength and wearing qualities, and are usually elastic and compressible, and consequently produce a cushion action -Winch causes the shoe or pad to Work loose.

The object of the present invention is to overcome the disadvantages of prior pad materials, as above set forth, and to provide a product which is suitable for the purpose in view.

With the foregoing and other objects.,,

nected by vulcanization to the soft rubber heel or calk.

The invention also resides in the method of producing said composition ofmatter,

In producing my composition otrnatter,

1 preferably employ the following ingredignts in substantially the proportions speci- Fine Para rubber 5 parts Reclaimed rubber 3 parts Golden antimony 5 parts Lime 1. part Magnesia Q parts Zinc oxid 1' part Rubberesaturated and coated cot ton fibers 19 parts Sulfur -m 5 parts Total ll parts The, above ingredients are suitably mixed into abatoh and then run out into a sheet of suitable sure and thickness. The sheet is stamped or cut out in shape or? horse pads and each pad is then condensed and vulcanized under a pressure of approximatel 2000 pounds for a period of 40 minutes.

Where it is desired to produce a composition of matter having even greater heatresistmg qualitie han the above described compound, I prefer to employ about two parts of shredded or defibered asbest s, t 8

fibers of which may be either natural or to ber saturated or coated. The two partsof asbestos are mired into the 'abovadescribed batch so as to make a total of 3 parts in stead of el'parts,

It will be understood that the above described formula is merely. illustrative, and

that the ingredients entering into the com- 7 pound, and their proportions, may be varied Within the limits defined by the claims, Without departing from the spirit of the involition,

In producing the ingredient of the above formula which is described as rubber saturated and coated cotton fibers, i prefer to employ the best sea island cotton duct: or canvas which has been thoroughly saturated and coated with rubber. This rubber saturated and coated fabric, I lace in an ordinary friction mill and t re de-fiber in such manner that the individual fibers are substautlslly uniu ured and are thoroughly sition of matter for making horse pads and other articles WhlOh COIlSlStS in mixing new and reclaimed rubber, vulcanizable fibers,- antimony, lime, magnesia, zinc oxicl, and sulfur, and condensing and vulcanizing the mixture thus produced.

11. A method of manufacturing a composition of matter for use in making horse pads and the like which consists in making a batch containing five parts of new rub-1 ber, three parts of reclaimed rubber, five parts of antimony, one part of lime, two

parts of magnesia, one part of zinc oxid and five parts of sulfur, sheeting out the batch, stamping out the horse pads, and

then vulcanizing and condensing the indi ridual pads.

In testimony that I claim the foregoing as my own, I have hereto aflixed my signature in the presence of two Witnesses.

FRANKLIN W. KREMER.

Vitnesses SELINA WILLSON, J. PERCY CAMPBELL. 

